310 entries under certain topic. ×

4
unshaken(adjective, set, clear, strong, flat)
4
unyielding(adjective, strong, tough, flat, firm)
3
complete(adjective, clear, sound, correct, flat)
3
composed(adjective, calm, quiet, cool, solid)
3
consummate(adjective, clear, complete, total)
3
downright(adjective, adverb, clear, complete, flat)
3
easy(adjective, calm, quiet, strong, cool)
3
ensured(adjective, solid, confident, settled)
3
inerrant(adjective, complete, valid, unquestionable)
3
inflexible(adjective, strong, tough, flat, firm)
3
irresistible(adjective, set, necessary, indisputable)
3
outright(adjective, clear, complete, flat, total)
3
perfect(adjective, clear, complete, correct, total)
3
resolved(verb, adjective, strong, flat)
3
sealed(adjective, solid, definite, confident)
3
sure-fire(adjective, informal, definite, assured)
3
tried-and-true(adjective, good, strong, honest, solid)
3
unassailable(adjective, set, true, safe)
3
unmitigated(adjective, clear, complete, flat, total)
3
warranted(adjective, definite, valid, assured)
10 years ago|36k views|share |citing 
APASmart Define. (2016). sure thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/sure/thesaurus/synonyms
ChicagoSmart Define. 2016. "sure thesaurus" https://smartdefine.org/sure/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, sure thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/sure/thesaurus/synonyms>.
MLASmart Define. "sure thesaurus" 31 March 2016. Web. 22 September 2026. <https://smartdefine.org/sure/thesaurus/synonyms>